Home / 68,437,126-94,419,983.64-39,047,345.20

Finding the Fourth Proportional to 68,437,126, 94,419,983.64 and 39,047,345.20

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Solution

The fourth proportional to 68,437,126, 94,419,983.64 and 39,047,345.20 is: 53,872,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,437,126 : 94,419,983.64 = 39,047,345.20 : x
  2. Step 2: Convert to fraction form
    68,437,126/94,419,983.64 = 39,047,345.20/x
  3. Step 3: Cross multiply
    68,437,126x = 94,419,983.64 × 39,047,345.20
  4. Step 4: Simplify right side
    68,437,126x = 3,686,849,694,969,433
  5. Step 5: Solve for x
    x = 3,686,849,694,969,433/68,437,126
  6. Step 6: Final answer
    x = 53,872,070.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.